From: Rajkumar Manoharan <rmanohar@codeaurora.org>
Date: Tue, 2 Jun 2020 06:14:27 +0000 (-0700)
Subject: AP: Restrict Vendor VHT to 2.4 GHz only
X-Git-Tag: hostap_2_10~1153
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=088bef178656c97d096e503382f64ff13a041067;p=thirdparty%2Fhostap.git

AP: Restrict Vendor VHT to 2.4 GHz only

Vendor VHT IE is used only on the 2.4 GHz band. Restrict the use of
vendor VHT element to 2.4 GHz. This will ensure that invalid/wrong user
configuration will not impact beacon data in other than the 2.4 GHz
band.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
---

diff --git a/src/ap/ieee802_11_vht.c b/src/ap/ieee802_11_vht.c
index f50f142dc..425b192e1 100644
--- a/src/ap/ieee802_11_vht.c
+++ b/src/ap/ieee802_11_vht.c
@@ -425,7 +425,9 @@ u8 * hostapd_eid_vendor_vht(struct hostapd_data *hapd, u8 *eid)
 {
 	u8 *pos = eid;
 
-	if (!hapd->iface->current_mode)
+	/* Vendor VHT is applicable only to 2.4 GHz */
+	if (!hapd->iface->current_mode ||
+	    hapd->iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
 		return eid;
 
 	*pos++ = WLAN_EID_VENDOR_SPECIFIC;